1243310442 has 32 divisors (see below), whose sum is σ = 2734055424. Its totient is φ = 373791600.

The previous prime is 1243310437. The next prime is 1243310447. The reversal of 1243310442 is 2440133421.

It is an interprime number because it is at equal distance from previous prime (1243310437) and next prime (1243310447).

It is not an unprimeable number, because it can be changed into a prime (1243310447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65784 + ... + 82547.

It is an arithmetic number, because the mean of its divisors is an integer number (85439232).

Almost surely, 2^1243310442 is an apocalyptic number.

1243310442 is an abundant number, since it is smaller than the sum of its proper divisors (1490744982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243310442 is a wasteful number, since it uses less digits than its factorization.

1243310442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148474.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1243310442 is about 35260.6075103649. The cubic root of 1243310442 is about 1075.2922780529.

Adding to 1243310442 its reverse (2440133421), we get a palindrome (3683443863).

The spelling of 1243310442 in words is "one billion, two hundred forty-three million, three hundred ten thousand, four hundred forty-two".